HELP me elaborate please

import java.util.Scanner;

public class ticket{

public static void main(String[] args) {

String day;

int age;

Scanner input = new Scanner(System.in);

System.out.print("Enter day of week: ");

day = input.nextLine().toLowerCase();

System.out.print("Tell me your age: 11 ");

age = Integer.parseInt(input.nextLine());

switch (day) {

case "monday":

case "tuesday":

case "wednesday":

case "thursday":

if(age<10)

System.out.println("Ticket Cost: Free");

else if(age>=10 && age<=65)

System.out.println("Ticket Cost: RM10");

else

System.out.println("Ticket Cost: Free");

break;

case "friday":

case "saturday":

case "sunday":

if(age<10)

System.out.println("Ticket Cost: RM10");

else if(age>=10 && age<=65)

System.out.println("Ticket Cost: RM20");

else

System.out.println("Ticket Cost: RM10");

break;

}

}

}